Free Printable WorksheetScienceGrade 7Science CurriculumSCI.7.34

7.34 Measuring Energy in Food Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 7 Science worksheet provides structured practice on 7.34 Measuring Energy in Food. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Measuring Energy in Food - Which setup or interpretation most accurately estimates food energy while addressing error sources? (NGSS SEPs; CCSS 6.SP.B.5)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 7

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 7.34 Measuring Energy in Food skill assessments:

Problem 1Difficulty: Mastery

About how much energy transferred to the water?

AAbout 6600 J

BAbout 9100 J

CAbout 60 J

DAbout 7600 J

Solution & Explanation:Use Q = m·c·ΔT for the water. Here m = 120 g, c ≈ 4.2 J/(g·°C), and ΔT = 15°C, so Q ≈ 120×4.2×15 ≈ 7600 J. The other choices come from common mistakes like using the wrong ΔT or forgetting the water mass.

Problem 2Difficulty: Mastery

If the efficiency stays the same, what is the best estimate of the food’s true released energy?

AAbout 0.005 kJ

BAbout 1.9 kJ

CAbout 12.0 kJ

DAbout 8.0 kJ

Solution & Explanation:If only 40% is captured, then measured = efficiency × true. True ≈ measured ÷ efficiency = 4.8 ÷ 0.4 ≈ 12.0 kJ. Multiplying by the efficiency would make the estimate even smaller.

Problem 3Difficulty: Mastery

About how many food Calories (kilocalories) is that energy?

AAbout 4.52 Calories (kcal)

BAbout 1.89 Calories (kcal)

CAbout 0.45 Calories (kcal)

DAbout 0.045 Calories (kcal)

Solution & Explanation:First find the energy to the water: Q ≈ 50×4.2×9 ≈ 1890.0 J (approx). Food Calories are kilocalories: 1 Calorie ≈ 4184 J. So Calories ≈ Q/4184 ≈ 0.45.

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Frequently Asked Questions

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 7 Science students. It aligns with educational standard SCI.7.34 (Grade 7 science practice focused on measuring energy in food.).